baber/WOPTO huggingface dataset:
Patent GB-1326432-A (GB)
Title: Transistor for super-high frequency and method of manufacturing  it
IPC: H01L29/732
Filed: 1970-07-20
Abstract: 1326432 Semi-conductor devices KOGYO GIJUTSUIN 20 July 1979 [18 Sept 1969 (2)] 35127/70 Heading H1K A bipolar transistor or an IGFET is produced by removing a portion of a first region of one conductivity type by selective etching, epitaxially growing a region of the same conductivity type in place of the removed portion and diffusing an impurity out of the first region to form a region of the opposite conductivity type surrounding a region of the first conductivity type in the epitaxially grown material, which surrounded region is the collector or drain of the transistor. In a first embodiment, Fig. 3 (not shown) an IGFET is produced in an N type wafer 3 containing a large concentration of Sb and a lower concentration of B, which has a larger diffusion constant, by etching a cavity and epitaxially depositing an N-type region (1a) and an N<SP>+</SP> type region (1). During these steps B diffuses out of the wafer (3) to form a P type region (2) within which the channel region may be induced, sepa. rating the source region (3) from the epitaxial drain region (1, 1a). An insulating layer (5) and a gate electrode (6) are then applied over the surface of the wafer. In a second IGFET embodiment, Fig. 4 (not shown), a P type substrate (2) containing B is provided with an N type surface layer (3) containing Sb and B by epitaxial growth or diffusion, a cavity is etched through the surface layer and N and N<SP>+</SP> drain regions are formed in the cavity by epitaxial growth. The wafer is then heated to diffuse B out of the surface layer 3 to form a P type layer which separates the source and drain regions and within which the channel may be induced. An insulating layer (5) and a gate electrode (6) are then applied. Connection may be made to the P type channel containing region via the substrate (2). In another embodiment, Fig. 9 (not shown), an inverse bipolar transistor is produced by etching a cavity in a P type substrate (6-4) epitaxially depositing an N type layer (6-1) which also contains a fast diffusing P type impurity to form the emitter region, epitaxially depositing N type and N<SP>+</SP> type portions (6-2, 6-22) of the collector region, and heating to diffuse the P type impurity contained in the emitter region into part of the lightly doped portion (6-2) of the collector region to form the base regions (6-31) and simultaneously performing a P<SP>+</SP> type diffusion to form a base contact region (6-6).
Patent GB-1027253-A (GB)
Title: Electrically heated water heating and boiling apparatus
Inventor: GOTZ JOHANNES
IPC: F24H9/20
Filed: 1964-08-27
Abstract: 1,027,253. Automatic temperature control. ELEKTROWARME SORNEWITZ VEB. Aug.27, 1964, No. 35147/64. Heading G3R. An electrical water heating and boiling appararatus comprises an electric heating element 5 and in series therewith an adjustable temperature regulator 6 of known type and a magnetically operated temperature regulator 8 which latter regulator includes a magnet 9 associated with the regulator 8 which co-operates with a magnet 10 carried by a freely moving float 11 inside the storage tank 2 of the apparatus. With a setting on the regulator 6 below boiling the regulator 8 remains closed and the regulator 6 cycles to maintain the water at the set temperature. When it is desired to boil the water the regulator 6 is set to a temperature above the water boiling point. When the water boils the subsequent agitation and depression of the water surface causes the float to drop whereupon the magnet 9 is released from the magnet 10 to open the contacts of the regulator 8 and de-energize the heating element 5. To cause the contacts of the regulator 8 to re-close it is necessary to admit more water to the tank 2 to raise the water level therein. The falling of the float 11 upon boiling of the water prevents the apparatus from boiling dry. The movement of the float 11 is constrained by a frusto-conical cage 12 in the tank. When the water level in the tank 2 is normal the float 11 is arranged to be submerged below its normal floatation level.
Patent GB-368391-A (GB)
Title: Improvements in or relating to stoppers or closures for electrical joint-boxes and similar boxes or receptacles
IPC: H02G3/14
Filed: 1930-11-28
Abstract: 368,391. Covers for resisting fluid pressure. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. Nov. 28, 1930, No. 35173/31. Divided on 368,265. [Class 123 (i).] A screw action plug or stopper for closing apertures in joint and similar boxes embodies a screw plate d of sheet metal adapted to be engaged under a screw profiled formation surrounding the inner side of the aperture to be closed. The closure member el may be separately produced such as a casting or pressing and may be secured to the plate d in the casting operation, by a screw e<3>, or by rivets or pinned projections. Specification 368,265, [Group XXXVI], is referred to.
Patent GB-340377-A (GB)
Title: Instrument for removing corns and callosities
IPC: A61B17/54
Filed: 1929-11-18
Abstract: 340,377. Pedicuring-appliances. HOLZ, J., 1, Maximilianstrasse, Pforzheim, Germany. Nov. 18, 1929, No. 35183. [Class 131.] An instrument for removing corns comprises a rotating tool b, Fig. 3, mounted in a bearing secured in a dental engine or like holder head a an extension of which covers the tool except for a recess a<1> which limits the depth to which the tool b can penetrate. The instrument is mounted on a dental hand piece c. The head b may be mounted eccentrically to the axis of the holder head. In a modification (Fig. 5) an ellipsoidal tool b is mounted in a split holder head d, d<1> which is screwed into an adaptor which fits a dental hand piece. The additional slots d<11> permit the escape of chips. In a further modification the instrument is designed as a hand piece to fit directly to the flexible shaft of a drilling machine.
Patent GB-343467-A (GB)
Title: Improvements relating to the supply of liquid media to air or gas pressure systems for preventing the freezing of moisture present therein
IPC: F17D1/05
Filed: 1929-11-18
Abstract: 343,467. Treating air and gases with liquids. WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London.-(Assignees of Wood, A. B. ; 7405, Ridge Boulevard, Chicago, U.S.A.) Nov. 18, 1929, No. 35214. Convention date, March 7. [Class 55 (ii).] Apparatus for supplying liquid media to air or gas pressure systems for preventing the freezing of moisture present therein comprises a chamber 2 containing alcohol or other anti-freezing liquid and surmounted by a chamber 4 through which flows the compressed air or gas. A guide tube 7 depending from a screw plug 8 at the top of chamber 4 is surrounded by a tubular wick 6 which extends to the bottom of chamber 2. A tubular sleeve 9 surrounding the wick and slidably adjusted by means of a U-shaped member 10 secured to its upper end exposes a variable amount of wick surface to the fluid flow in chamber 4. In a modification the wick is uncovered as the sleeve is raised into a chamber provided in the screw plug.
Patent GB-448456-A (GB)
Title: Improvements in or relating to bogies for rail vehicles and the like
IPC: B61F5/18
Filed: 1934-12-07
Abstract: 448,456. Railway - vehicle bogies. ARMSTRONG, WHITWORTH, & CO. (ENGINEERS), Ltd., SIR W. G., and PAWSON, G., Sootwsood Works, Newcastle - on - Tyne. Dec. 7, 1934, No. 35258. [Class 103 (vi)] In order to provide for the disposition of a rod of the brake or driving-gear or equivalent mechanism along the central line of a rail or like vehicle, the centre pivot pin is made in the form of an arch 8 having two feet 8a which are adapted to engage and be slidable vertically within a ring or similar member 6 swivelling within a socket or bearing 7 carried by the bogie, the arch 8 being designed to bridge the rod 9 with sufficient clearance to permit the necessary relative displacement between the parts. In the arrangement shown in Fig. 1, the centre pivot is of the non-loadcarrying kind, the feet 8a engaging notches 6a in the ring 6, while the bearing 7 is mounted on a spring-supported bolster 2 having loadcarrying side bearings 4, 5. In a modification, the feet 8a extend to the bottom of the notches 6a and take the load, while the side bearings are non-load-carrying. In another construction, Fig. 4, the feet 8a are lengthened and extend through a diametral segment of a sphere 13 working in a split spherical ring 14, 14a supported by a transverse member 15 of the bogie frame.
Patent GB-1137228-A (GB)
Title: Improved whey product and process of manufacture
IPC: A23C9/144
Filed: 1966-08-08
Abstract: 1,137,228. Whey products. FOREMOST DAIRIES Inc. 8 Aug., 1966 [16 Aug., 1965; 17 Jan., 1966], No. 35338/66. Heading A2B. A method of producing whey products, e.g. for use in infants' foods or with rice hull or bran comprises heating a whey concentrate from which a substantial amount of lactose has been removed in the form of crystals, to eliminate residual lactose crystals, subjecting the concentrate to clarification to remove insoluble protein and then subjecting the delactosed whey concentrate to electrodialysis to reduce the ash content. The whey is preferably concentrated by vacuum evaporation and the lactose crystals formed on cooling the concentrate are substantially removed by centrifugation or filtering. The electrodialysed product may be neutralized, concentrated and spray-dried. The wheys specified include cheese wheys, e.g. cheddar, cottage, Swiss, Edam and jack cheese
Patent GB-877507-A (GB)
Title: Improvements in heating, cooling and ventilating system
Inventor: PIERCE JOSEPH DOUGLAS
IPC: F24F1/01
Filed: 1958-11-04
Abstract: 877,507. Air conditioning. VULCAN RADIATOR CO. Nov. 4, 1958, No. 35385/58. Class 137 An air conditioning unit 7 comprises a heat exchanger 17 located between an upper air outlet 14 and a lower air inlet 16, with a fresh air duct 21 extending below the unit 7 so that the front side wall 28 and the upper edge portion 27 of the front wall 22 of the duct form a series of spaced air jets 30 along the lower edge of the inlet 16 at an acute angle to the front wall, these jets directing the fresh air from duct 21 upwardly and inwardly past the inlet 16 and inducing an air flow from the space to be ventilated into the unit, the mixed air then circulating over the heat exchanger and discharging into the space via outlet 14. Fresh air is forced into the duct 21 by a fan or blower and the heat exchanger 17 is used as a heater or cooler, the top of the duct forming a condensate drain trough 26. The air flow is controlled by a damper 15 set in the outlet 14 and the duct 21 is spaced from the front portion 9 to form the inlet 16.
Patent GB-517799-A (GB)
Title: Improvements in the catalytic polymerisation of olefines
IPC: C07C2/24
Filed: 1938-12-06
Abstract: 517,799. Polymerizing olefines. I.G. FARBENINDUSTRIE AKT.-GES. Dec. 6, 1938, No. 35583. Convention date, Dec. 6, 1937. [Class 2 (iii)] Olefines are polymerized with phosphoric acids or phosphoric acid anhydride admixed with free metals which are less electropositive than hydrogen, e.g. copper, silver or the platinum metals, in finely divided form. Gaseous olefines, e.g. butenes, propene, or ethene, pr low-boiling liquid olefines, e.g. hexenes or heptenes, or mixtures containing these may be treated. The metal as such or precipitated on a carrier may be suspended in the liquid acid or applied to a carrier, e.g. kieselguhr or active carbon, together with the acid. The carrier, if desired after evacuation, may be impregnated with a solution of a salt of the metal which is decomposed to the oxide, and reduced. The reduction may be effected simultaneously with activation of the carrier, for example carbon. The acid is then added while excluding air. Polymerization is effected at 125-350‹, preferably 50-250‹C., at ordinary or raised pressure. In examples: (1) active carbon is impregnated with copper sulphate solution which is reduced with ammoniacal sodium hyposulphite. After washing, phosphoric acid is added. The catalyst is used at 200 ‹C. to polymerize propene to hydrocarbons mainly boiling below 200‹C. ; (2) active carbon is impregnated with copper formate solution, dried, and reduced in hydrogen at 300‹C. After adding phosphoric acid it is used as in (1); (3) copper chloride is used similarly. Specification 479,657 is referred to.
Patent GB-1528279-A (GB)
Title: Tracheobronchial sampler device
IPC: A61B10/02
Filed: 1976-08-26
Abstract: 1528279 Catheter guides F E KHOURY 12 Aug 1977 [26 Aug 1976] 35642/76 Heading A5R A tracheo-bronchial sampling device comprises an outer tube 1 capable of insertion into the trachea, a tubular member 4 insertable in said outer tube and defining a passage through which a sampling catheter 9, Fig. 4, can be passed into the trachea, means for spacing said tubular member from the inner wall of the outer tube, and means for preventing the insertion of the tubular member through the outer tube beyond a predetermined point. In Fig. 1b the tubular member is provided with outwardly projecting webs 7, one of which has a rib 7a along its outer edge which engages in a groove 2, Fig. 1a, in the inner surface of the outer tube, said groove being closed at the end 2a adjacent the outlet of the outer tube. In Fig. 4 the tubular member is provided with an apertured stop member 11 which abuts against the outer end of the outer tube 1; the sampling catheter 9 may be provided with a similar stop member 12 which abuts against the outer end of the tubular member 4.
Patent GB-1034197-A (GB)
Title: Sulphonic acid derivatives of fluorocarbon vinyl ethers, and polymers thereof
IPC: C08F216/14
Filed: 1964-09-01
Abstract: The invention comprises compounds of the general formula <FORM:1034197/C2/1> wherein RF is fluorine or a C1-10 perfluoralkyl radical, Y is -F or -CF3, n is 1, 2 or 3, and M is fluorine, a hydroxyl radical, an amino radical or a radical of the formula -OMet where Met is an alkali metal or a substituted or unsubstituted ammonium radical.  The compounds in which M is fluorine can be prepared by pyrolysis of compounds having the formulae <FORM:1034197/C2/2> and <FORM:1034197/C2/3> where RF, Y and n are as defined above and X is an alkali metal.  The compounds in which M is fluorine can be converted into compounds in which M is -OH by hydrolysis with water and into compounds in which M is -NH2 by treatment with aqueous ammonia.  Compounds in which M is -OMet are obtained by salifying compounds in which M is -OH with an alkali metal compound or an ammonium or substituted ammonium compound. Examples are given.ALSO:The invention comprises polymeric material containing the structure <FORM:1034197/C3/1> wherein RF is fluorine or a C1- 10 perfluoroalkyl radical, Y is -F or -CF3, n is 1, 2 or 3, and M is fluorine, a hydroxyl radical, an amino radical or a radical of the formula -OMet where Met is an alkali metal or a substituted or unsubstituted ammonium radical.  The material may be prepared by homopolymerization of compounds of the formula CF2=CF-(-O-CF2-CFY-)n -O-CF2-CFRF-SO2-M RF, Y, M and n being as defined above, or by the copolymerization of such compounds with any ethylenically unsaturated monomer capable of homopolymerization.  Comonomers exemplified are perfluoro(alkyl vinyl ethers) and perfluoro alpha-olefins.  The sulphonyl groups in the polymer may be subjected to known reactions of sulphonyl groups.  Copolymers of the invention may be vulcanized using the -SO2M group by heating in the presence of metal oxides or by reaction with polyfunctional reagents such as diamines.  The polymers are useful as ion exchange resins.  The polymers may be moulded or extruded and, when M is -ONa, may be used as aqueous dispersions to coat surfaces such as metals.  In the preparation of elastomeric products, various fillers may be compounded into the polymers by milling, the mixture then being moulded under heat and pressure.  Examples are given.ALSO:Aqueous dispersions of polymers containing the group <FORM:1034197/B1-B2/1> SO2-ONa <FORM:1034197/B1-B2/2> in which RF is fluorine or a C1-10 perfluoralkyl radial, Y is -F or -CF3 and n is 1, 2 or 3 (see Division C3), may be employed to coat metals and other surfaces, and form coherent and continuous coatings without the requirement of sintering or melting the polymer.
Patent GB-1007094-A (GB)
Title: Improvements in or relating to apparatus for phase synchronising two electric signals
Inventor: OVENDEN RAYMOND EDWARD
IPC: H02P5/50
Filed: 1960-10-18
Abstract: 1,007,094. Automatic phase control systems. DE HAVILLAND AIRCRAFT CO. Ltd. Oct. 18, 1961 [Oct. 18, 1960], No. 35745/60. Heading H3A. [Also in Division G3] Two A.C. signals,.e.g. related to the speed of aircraft propellers, are kept in synchronism by converting any phase displacement into a D.C. voltage and using this to adjust the frequency of one of the signals. The signals are converted into narrow pulses by devices 2, 3 and 4, 5 which are fed to a reversible counter 6, the output of which is square pulses having a markspace ratio corresponding to the phase displacement. These are converted to a D.C. voltage in a digital to analogue converter 7, it being arranged that zero voltage corresponds to synchronism. The polarity of the D.C. voltage depends upon whether one signal is lagging or leading relative to the other. Error plus integrated error derived through amplifier 8 and integrator 9 respectively is fed to a further amplifier 10 whose A.C. output controls a motor 11 driving the correcting device 16, e.g. an engine governor. Positional feedback is derived from a resolver 12 driven through gearing 13 and phase sensitive rectifier 14, and velocity feedback for damping from a tacho generator 17 and a phase sensitive rectifier 18. The reversible counter comprises three bi-stable circuits (Fig. 3, not shown) to which the pulses from 3, 5 are fed via gating circuits. The arrangement is such that, at 180 degrees phase displacement, the centre bi-stable circuit is switched by master and slave pulses at equal intervals, the other two bi-stable circuits being " on " and " off " respectively. Phase displacement greater or less than 180 degrees switches the " on "/" off " periods of the centre circuit until 0 or 360 degrees is reached, when switching is transferred to the next circuit up or down.
Patent GB-885608-A (GB)
Title: 3-indolyl aminoethyl ketones
Filed: 1959-10-22
Abstract: The invention comprises compounds of the general formula <FORM:0885608/IV (b)/1> their acid addition salts, quaternary ammonium salts, amine oxides and amine oxide acid addition salts, wherein R, R1 and R2 are hydrogen atoms, C1-4 alkyl radicals, R5 and R6 are hydrogen atoms, aryl, aralkyl, cycloalkyl, or alkyl radicals and together contain not more than 15 carbon atoms or R5 and R6 together with the adjacent N-atom form a heterocyclic amino radical, R7 represents hydrogen, a C1-8 alkyl radical, an aryl or aralkyl radical and the benzene ring Z may contain as additional substituents halogen atoms, hydroxy, benzyloxy, benzhydryloxy, C1-9 alkoxy or acyloxy (where the acyl substituent is derived from a C1-8 carboxylic acid) radicals; 1-ethyl-3-indolyl 21-dimethyl-aminoethyl ketone; 1-methyl-3-indolyl 11-methyl-21-dimethylaminoethyl ketone; the preparation of the compounds of the general formula <FORM:0885608/IV (b)/2> by reacting a 1-hydro-3-acylindole containing a hydrogen atom alpha to the carbonyl group with an appropriate aliphatic aldehyde and a basic nitrogen compound comprising ammonia, a primary amine or a secondary amine, at a pH of less than 7 and, when R and R2 are hydrogen, employing at least twice the molar amount of aldehyde and basic nitrogen compound based on 1-hydro-3-acylindole, and subjecting the resulting compound to alkaline hydrolysis; and the preparation of compounds of the first general formula by the preceding process but omitting the final hydrolysis step.  The preparation of 1,2-diethyl-3-indolyl 21-ethyl-2-diethylaminoethyl ketone, 1,2-dipropyl-6-]p,p1-dimethylbenzhydryloxy)-3-indolyl 1,11-diethyl-2-piperidinoethyl ketone, 1-hexyl-6-benzyloxy-3-indolyl 21-butyl-21-methylamino-ethyl ketone. 1-ethyl-2-phenyl-5-methoxy-3-indolyl 21-ethyl-21-morpholinoethyl ketone, 1-butyl-3-indolyl 11-ethyl-21 pyrrolidonoethyl ketone and 1-butyl-3-indolyl 11,21-dibutyl-21-morpholinoethyl ketone by the process of the parent Specification is also disclosed. 1-Hexyl-6-hydroxy-3-indolyl 21-butyl-21-methylaminoethyl ketone was prepared by hydrogenolysis of the corresponding benzyloxy compound. 3-Isobutyrylindole is prepared from indole and isobutyl chloride. Similarly, are prepared 1,2-diethyl-3-acetylindole, 1,2-dipropyl-6-(p,p1-dimethylbenzhydryloxy) - 3 - (21 - ethylbutyryl) indole, 6-benzyloxy-3-acetylindole, 7-methoxy-3 - valerylindole, 2 - phenyl - 5 - chloro - 3 - propionylindole, and 2-phenyl-5-methoxy-3-acetylindole.  6-Acetoxy-3-acetylindole is prepared by debenzylating 6-benzyloxy-3-acetylindole to give 6-hydroxy-3-acetylindole which is acetylated. 1-Hexyl-6-benzyloxy-3-acetylindole and 1-ethyl-2-phenyl-5-methoxy-3-acetylindole are prepared from hexyl or ethyl iodide and the appropriate N-unsubstituted indole. Specifications 744,774, 797,258 and U.S.A. Specifications 1,915,334 and 2,075,359 also are referred to.
Patent GB-928683-A (GB)
Title: A method of producing highly purified silicon carbide
IPC: C01B31/36
Filed: 1959-10-23
Abstract: Silicon carbide is prepared by thermal decomposition and/or reaction of a purified gas mixture containing both a gaseous silicon compound and a gaseous carbon compound flowing past a heated carrier maintained at above 1150 DEG C.  The reaction gas, which preferably contains Si and C in an atomic proportion of 1, may contain a halosilane, e.g. SiClH3 or SiHCl3 together with H2 and/or inert gas, e.g. A, and is passed from a nozzle over a rod-shaped carrier, which may have a coefficient of expansion approximately the same as SiC, of, e.g. graphite, silicon, silicon dioxide, aluminium oxide, tantalum, tungsten, molybdenum, or rhenium, heated electrically, inductively, radiantly, or conductively.  The carrier may contain a conductivity-type determining impurity, e.g. boron, or a gaseous conductivity-type determining impurity may be present in the reaction gas.  Two layers of SiC may be deposited which are oppositely doped. A protective layer of Si may be deposited on the SiC by lowering the carrier temperature to 1000 DEG C.  Chemical or metallurgical apparatus may be formed of the SiC, or gas-tight protective coatings of SiC for electrical, chemical, metallurgical, and optical apparatus, e.g. optical lens, may be produced by the process, with the bodies to be coated acting as carriers.  The carrier and coating may serve as electrical connections, and portions of the carrier and any protective Si layer may be removed by etching for use as rectifiers.  An SiC crucible may be prepared by depositing SiC on a crucible-shaped carrier and the carrier removed mechanically or by etching, or a crucible may be coated with SiC.  These crucibles may be used for drawing silicon or other semi-conductor crystals from a melt.ALSO:A crucible is made of, or coated with, silicon carbide prepared by thermal decomposition and/or reaction of a purified gas mixture containing both a gaseous silicon compound and a gaseous carbon compound flowing past a heated carrier maintained at above 1150 DEG  C. (see Group III).  The SiC may be deposited on a crucible-shaped carrier to form a coated crucible, or the carrier may be removed mechanically, or by etching to form a SiC crucible.  These crucibles may be used for drawing silicon or other semi-conductor crystals from a melt.